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Use the Separator trait for the filter property

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This commit is contained in:
Anthony Ramine 2017-06-27 13:48:34 +02:00
parent 813883e1bd
commit 395f6be0a6
13 changed files with 66 additions and 131 deletions
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45
components/style/values/generics/effects.rs
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@ -4,18 +4,9 @@
//! Generic types for CSS values related to effects.
use std::fmt;
use style_traits::ToCss;
#[cfg(feature = "gecko")]
use values::specified::url::SpecifiedUrl;
/// A generic value for the `filter` property.
///
/// Keyword `none` is represented by an empty slice.
#[cfg_attr(feature = "servo", derive(Deserialize, HeapSizeOf, Serialize))]
#[derive(Clone, Debug, HasViewportPercentage, PartialEq, ToComputedValue)]
pub struct FilterList<Filter>(pub Box<[Filter]>);
/// A generic value for a single `filter`.
#[cfg_attr(feature = "servo", derive(Deserialize, HeapSizeOf, Serialize))]
#[derive(Clone, Debug, HasViewportPercentage, PartialEq, ToComputedValue, ToCss)]
@ -71,39 +62,3 @@ pub struct SimpleShadow<Color, SizeLength, ShapeLength> {
/// Blur radius.
pub blur: ShapeLength,
}
impl<F> FilterList<F> {
/// Returns `none`.
#[inline]
pub fn none() -> Self {
FilterList(vec![].into_boxed_slice())
}
}
impl<F> From<Vec<F>> for FilterList<F> {
#[inline]
fn from(vec: Vec<F>) -> Self {
FilterList(vec.into_boxed_slice())
}
}
impl<F> ToCss for FilterList<F>
where
F: ToCss,
{
fn to_css<W>(&self, dest: &mut W) -> fmt::Result
where
W: fmt::Write
{
if let Some((first, rest)) = self.0.split_first() {
first.to_css(dest)?;
for filter in rest {
dest.write_str(" ")?;
filter.to_css(dest)?;
}
Ok(())
} else {
dest.write_str("none")
}
}
}